Spinning and twisting machine.



P. SARACCO.

SPINNING AND TWISTING MACHINE.

APPLlCATlON FILED DEC.26. 1913.

Patented May 11, 1915.

2 SHEETS-SHEET I.

P. SARACCO.

SPINNING AND TWISTING MACHINE.

APPLICATION FILED 'I)c.26. 1913.

1,138,981 Patented May 11, 1915.

Z SHEETS-SHEET 2.

THE NORRIS PETER-'1' CO, PHOTO-LITHG.. WASHINGTON, D Q

PIETRO SARACGO,

or runrn,

ITALY.

$PINNING AND TWISTING- MACHINE.

Specification of Letters Patent.

Patented May 11, 1915.

Application filed December 26, 1913. Serial No. 808,889.

To all whom it may concern:

Be it known that I, Pnrrno SARAcco, a subject of the King of Italy, residing at Turin, Italy, have invented certain new and useful Improvements in Spinning and Twisting Machines, of which the following is a specification.

The invention relates to spinning and twisting machines having fliers,by the rotation of which the spools or bobbins carrying the thread are subjected to a double movement, that is to say, a rotation about their axes and a revolution about an intermediate ax1s.

According to the invention the fiier comprises a hollow cylindrical box mounted so as to be driven by the driving belt of the machine and, within the said box, a support provided with a pin driven by another belt and comprising at the top spindles to which the spools provided with thread are simply suspended. Each of the spools has at its lower part, a surface adapted to contact with the inner surface of the rotating box when the support of the spindles rotates, so that the outer box in rotating, imparts to each spool a rotation about its axis, and hence the double rotation of the spoolsis obtained.

The accompanying drawing shows by way of example a construction of the machine according to this invention, Figure 1 showing the flier separately in elevation, Fig. 2 being an axial section, Fig. 3 a plan, Fig. 4. showing in elevation a portion of the frame comprising several fliers, Fig. 5 the corresponding plan.

As will be seen in Figs. 1-3, each flier can be'mounted on a bracket 15 provided at the bottom with a step bearing 16 and at the top with a collar 17 to which is secured for instance by means of a screw 17 a sleeve.

18. In the interior of the latter is mounted a central spindle 2 resting with its bottom end on the step bearing 16, while to'its opposite end is keyed a disk 1 to which are secured two or more spindles 6' according to the number of threads to be twisted. Each spindle 6 is preferably tubular and closed at the top by a cap 19 longitudinally perforated. Outside the sleeve 18 is mounted the outer box 4 carrying the pulley 20 for driving it.

The spools 21 for the thread, are hollow (Fig. 2) and provided at the bottom of their recess with a projection 22 adapted to press on the head of the cap 19, as well as with a rod 28 engaging with the hole in the cap 19.

On its lower edge, each spool is provided with a rim 24 intended to engage with the inner rim of the box 4 when the rod 2 is rotating. Each spool remains therefore suspended on the spindles 6 in such a manner that, when the rod '2 is standing still, its rim 24: does not touch the inner wall of the box 4, while it is pressed against it by centrifugal force as soon as the spindle 2 begins to rotate. The spindles 6 are therefore secured to the disk 1, and only the spools rotate about their axes and are forced to move by the action of centrifugal force, so that the pressure against the wall of the box 4" could never become excessive. Moreover, the construction of the machine is greatly simplified, and its driving requires very little power.

Figs. 1 and 2 show details of construction of the machine which can naturallyvary. According to this construction, the lower end of the spindle 2 rests on a small cup 25 inserted into the hollow of a plug 26 screwed into the bracket 16 and held in place by a ring 27 which also keeps the end of the said spindle in its center. As the screwed into. the bracket and locked by the spring 28 engaging with the recesses provided on its rim, the height of the cup 25 can be adjusted at will, and in that way the wear compensated.

In order to avoid as far as possible, the scattering of lubricating oil, it is introduced into the recess of the bottom plug 26 and into a chamber 15 whence it is raised by capillarity, by means of a Wick, into an annular recess of the spindle 2 in the interior of the bracket 18.

For lubricating the spools, each of the tubular spindles 6' is filled with grease, and a spiral is provided on the spindle 23 of the spool, so that it raises gradually the small quantity of grease required for lubricating the surface ofcontact between the spool and the cap 19'.

The mounting of the fliers in the frame is preferably effected by arranging them in a closed line, each beingeither supported by 7 an independent bracket or the brackets being formed by the cross-bars 30 and 31 of the frame (Fig. 4).

plug 26 is.

In any case, the movement is transmitted to the two elements of the flier by means of two endless independent belts 32 and 33 driven by the pulleys of the frame, the belt 32 passing over the pulleys 20 of the various fliers, while the belt 33 passes over. ally the spindles 2.

The box 4:, the fixedv sleeve 18 and the spindle 2, are provided with holes 29 which in certain positions of the parts abovementioned, register with each other. Into these holes 29" can be introduced a rod which passes through them and arrests the fliers.

The working of the machine is as'follows: Assuming that the apparatus is stationary, the spools 21 filled with thread, are placed on the spindles 6, taking care that the rods 23 engage with the holes of the caps 19. When the flier is rotated, the spindle 2. with the disk 1 and the spindles 6, rotates about its axis, and each of the spools 21, under the actionof centrifugal force, is pressed with its rim 2a against the inner wall of the box 4 whereby the spools are also rotated. Each spool has consequently a movement of rotation about its axis and a movement of revolution about the axis of the spindle 2, so that the desired degree of twisting of the thread is obtained, the thread being raised and guided in any desired manner from the spools 21. I

WVhat I claim as to secure by Letters Patent is 1. In a machine for spinning and twisting the combination with a rim having a vertical axis, of a rotary support concentric with the said rim, means for rotating the said support, spools carrying the thread, means on the said support for suspending the spools, and means on the said spools adapted to engage with the outer rim' during the rotation of the support.

2. In a machine for spinning and twisting, the combination with a rotary rim having a vertical axis, of a rotary support concentric with the said rim, means for independently rotating the rim and the support, spools carrying the thread, means on the said support for suspending the spools therefrom and means on the said spools adapted to come into engagement with the outer rim during the rotation of the support.

3. Ina machine for spinning and twisting, the combination with a rotating rim having a vertical axis, of a rotating support concentric with the said rim, meansfor rotating independently the rim and the support, vertical spindles secured to the said support, a hollow spool for the thread, pivoted on each of the said spindles, and means on the said my invention and desirespools adapted to, engage with the outer rim during the rotation of the bracket.

4. In a machine for spinning and twisting, the combination with a rim having a vertical axis, of a rotating support concentric with the said rim, means for rotating the said support, spools carrying the thread, each provided with a rolling surface at its bottom, and means for suspending the spools on the support so that their rolling surfaces are away from the outer rim when the support is stationary, and engage with it when the said support is rotated.

5. In a machine for spinning and twisting, the combination with a rim having a vertical axis,- of arotating support concentric with the said rim, means for rotating the said support, vertical spindles secured to the said support, a hollow. spool for the thread for each. of the said spindles, rolling surfaces at the base of the said spools and means for pivoting the spools on the spindles whereby their rolling surfaces are away from. the outer rim when the support is stationary, and come into contact therewith whenv the said support is rotated.

6. Ina machine for spinning and twisting, the combination with a rotating rim having a vertical axis, of a rotating support concentric withthe said rim, means for rotating independently the rim and the support, spools carrying the thread, each provided with a: rolling surface at the base, and means for suspendingthe spools on the support so that their rolling surfaces are away from the outer rim when the: support is stationmy, and come intocontact therewith when the said supportis rotated.

7.'In a-machine for spinning and twisting, the combination with a rotating rim having a vertical axis, of a rotating support concentric with the said rim, means for rotating independently the rim and the support, vertical spindles secured to the said support, a hollow spool carrying the thread for each of the said spindles, rolling surfaces at the base of the said spools, and means for mounting the spools so that their rolling surfaces are away from the outer rim when the support is stationary, and engage with the same when the said support is rotated.

In testimony whereof: I have signed my name to this specification in the presence of two subscribing witnesses.

PIETRO SARACCO.

Witnesses:

CARLO Toma, C. L. FEYLo.

G'opiesof this-patent may be obtainedfor five cents each, by addressing; the Commissioner of Patents,

Washington, D. 0'. 

